我想将Gvt Validation与Gvt 2.4.0一起使用。
我的gwt.xml文件中有:
<inherits name="javax.validation.Validation" />
<inherits name="com.google.gwt.validation.Validation" />
<inherits name='com.em.validation.Validation' />
与文档中一样,我有以下代码:
import javax.validation.Validator;
import javax.validation.ValidatorFactory;
...
ValidatorFactory factory =
Validation.byDefaultProvider().configure().buildValidatorFactory();
Validator validator = factory.getValidator();
问题是我有以下错误:
延迟绑定结果类型"javax.validation.ValidationFactory"不应是抽象的。
//。。。美丽的堆栈主要有:
"javax.validation.ValidatorFactory"的延迟绑定失败(确实您忘记继承必需的模块了吗?)
我的pom.xml包含:
<dependency>
<groupId>com.googlecode.gwt-validation</groupId>
<artifactId>gwt-validation</artifactId>
<version>2.0</version>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>1.0.0.GA</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>1.0.0.GA</version>
<classifier>sources</classifier>
<scope>provided</scope>
</dependency>
我能做什么?谢谢
问题出在java导入中。
在以下代码中:
ValidatorFactory factory =
Validation.byDefaultProvider().configure().buildValidatorFactory();
Validator validator = factory.getValidator();
我进口:
com.google.gwt.validation.client
而不是javax.validation
java编译时没有错误!只是上面在gwt编译时(或使用托管模式的运行时)出现的错误。
我的GWT.XML文件中有这个:
<inherits name="org.hibernate.validator.HibernateValidator" />
<replace-with class="com.example.client.MyValidatorFactory">
<when-type-is class="javax.validation.ValidatorFactory" />
</replace-with>
我这样定义MyValidatorFactory:
public final class MyValidatorFactory extends AbstractGwtValidatorFactory {
/**
* Validator marker for the Validation Sample project. Only the classes
* listed in the {@link GwtValidation} annotation can be validated.
*/
@GwtValidation(value = { Customer.class, License.class, Account.class })
public interface MyValidator extends Validator {
}
@Override
public AbstractGwtValidator createValidator() {
return GWT.create(GwtValidator.class);
}
}
在我的类路径中,我有:
hibernate-validator-4.2.0.Final-sources.jar
hibernate-validator-4.2.0.Final.jar
现在您可以验证您的域对象:
Validator validator = Validation.buildDefaultValidatorFactory().getValidator();
Set<ConstraintViolation<Account>> violations = validator.validate(account);
同样的验证也适用于服务器端:
private static ValidatorFactory factory = Validation.byDefaultProvider().configure().buildValidatorFactory();
Set<ConstraintViolation<DomainResource>> violations = factory.getValidator().validate(account);
好东西!